Does 2.3L 4-Cyl VTEC engine in an Accord LX have oil flow through the head that would show up as an oil leak if the head gasket is blown?
I have been told this engine has a blown head gasket by a commercial chain garage. Not sure how they tested. They said visible inspection and chemical test but this was only a $25.00 general car inspection. Engine seems to start, run and sound good (?), Just not as peppy as when new.
Old upper radiator hose (hot flow to radiator) is expanded like a balloon. (But maybe just old? Will replace hoses along with thermostat and radiator cap). No overheating or smoke in exhaust! I do not see bubbles in coolant, nor is coolant blown out through reservoir. I sampled oil from cold engine via drain plug, no visible coolant in oil. I do see an oil leak somewhere around the valve cover and the oil seals around spark plug tubes seem to have failed.
Next possibly considering a chemical blown gasket/coolant test. I may also do compression and leak down tests, but saw the new 2carpros article on blown head gaskets which mentioned the oil flow through the head and possible oil leak via a blown head gasket. I had not seen this discussed before and I do have a VTEC engine wherein oil pressure is used to adjust the valve timing/lift. (But my understanding is that the VTEC solenoid actuator valve itself is under a separate cover and gasket.
I know I need to do at least a valve adjustment and replace various valve cover seals. Just trying to determine if I need to go that much farther, or maybe just do a head removal and inspection anyway (?).
Thanks.
Wednesday, February 13th, 2019 AT 12:14 PM
(Merged)